Nagios Support Forum

Hi Team,

As per the requirement we have to install NagiosXI on an AWS instance.
We have checked on the possibility and support with AWS team on the same. AWS team has posted us some queries before giving the final recommendation on the cost and support plans. Request you to please help us with the ideal configuration of NagiosXI instance on AWS instance.

We have infra of 3000+ servers which include AWS instances , on-premise servers, network devices etc.

- What should be the size of the AWS instance in terms of hardware requirements like- RAM, CPU cores, MySQL database size, cache memory and other parameters which involve cost in AWS ?
- If we are going with Offloading the MySQL database to a remote server-- what should be the requirement for this particular MySQL instance?
- Estimate of outbound data (KBs/MBs) for polling/requesting one single query (eg: fetching of free disk space value or a PING check). We are using NCPA agent based monitoring

We have gone through the below document which says that physical server is recommended for large infra. But here we are definite on hosting it on an AWS instance. Will there be any major impact from the monitoring perspective.

https://assets.nagios.com/downloads/nag ... ements.pdf

Please help us with the above queries . Thanks.

Regards.

I think a good place to start with specs for this many hosts would be to double the largest recommendations found in the guide. If you're offloading the database then I would say split the specs again so they both have an equal resources except for the disk space - the database will require more space so I'd probably try giving it a 70%/30% split in that department.

Regarding a single query fetching disk space or ping results, that should be small - <1KB.

The guides are typically good starting points, but as always, your results will vary and requirements depend a lot on your environment - the resources checks require, the frequency of the checks, the amount data returned, how long the data is stored, etc... Here are a couple more to help with improving performance:

https://assets.nagios.com/downloads/nag ... ios-XI.pdf
https://assets.nagios.com/downloads/nag ... zation.pdf